Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dang khai do snippets" » "dang khoi do snippets", "dang hai do snippets", "quang khai do snippets", "dang thai do snippets", "dang khac do snippets", "dang khai mo snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dang khai do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang khai do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang khai do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang khai do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.